Plant Structure and Function

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Transcript of Plant Structure and Function

Foundation Roots, Stems, and leaves Group Practice Independent Practice Homework Tissues Think-Pair-SharePage 646 in your book:Read and discuss with your partner the differences between an Angiosperm and a Gymnosperm Plant Structure and Function Complete the concept map in the first page ofyour hand out

Complete the second page of your worksheetAnswer questions 1-5 Complete the rest of yourworksheet in class (page 3) Please be silent as you internalize the content you have just learned. Add Dermal Tissue, Vascular Tissue, Ground Tissue, and Meristematic Tissue to your listof words. - Finish worksheet- Complete table hand out BellRinger

10 minutes Go to page 665 Plants have 3 basic organs:- Roots- Stems- Leaves Why do you think roots are hairy and spread around the ground? Why are leaves flat and wide? Why are flowers beautiful?Remember: The structure always helps the function. Tissue systems: (Vocabulary in worksheet)The dermal tissue system covers the exterior of a plant.

The vascular tissue system transports materials between roots and shoots.

The ground tissue system is located between the dermal tissue and the vascular tissue, and is responsible for most of the plant's metabolic functions. - Outer covering of a plant- Often covered with a thick, waxy layer called cuticle that protect against water loss and injury What is dermal tissue? IT is THE HIGHWAY! - transport system that moves H2O and nutrients through the plant- You NEED TO KNOW: Xylem, carries waterPhloem, carries food What is vascular tissue? Three processes combined to move water up in a tree:1. Root pressure: Pressure created by water entering the tissues of a root can push water upward in a plant stem.2. Capillary action: Water moving up from the roots to the top of the trees 3. Transpiration: plants loose water to the environment. That's right! They sweat! How do plants transport water? Water molecules are attracted to one another by a force called cohesion.

H2O molecules can also be attracted to other substances resulting from a force called adhesion.

The tendency of H2O to rise in a thin tube is called capillary action. Capillary action work? Water Properties! Made up of cells that lie between dermal and vascular tissues What is ground tissue? Meristematic Tissue Meristems are clusters of tissue that are responsible for continuing growth throughout a plant’s lifetime.The new cells produced in meristematic tissue are undifferentiated (they could be any type of cell!)

An apical meristem is a group of undifferentiated cells that divide to produce increased length of stems and roots. 10 minutes to complete it5 minutes for discussion